Morphological variation across space does not predict phenotypic change through time in two Neogene planktonic foraminifera species
Introduction: Lines of least resistance, or the direction of maximum phenotypic variation, are reliable predictive tools for directions of evolutionary divergence through time. However, the consistency of trait covariation patterns through space, i.e. in different populations of the same taxa inhabi...
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ftsouthampton:oai:eprints.soton.ac.uk:476281 2024-02-11T10:08:03+01:00 Morphological variation across space does not predict phenotypic change through time in two Neogene planktonic foraminifera species Brombacher, Anieke Wilson, Paul Bailey, Ian Ezard, Thomas 2023-04-05 text https://eprints.soton.ac.uk/476281/ https://eprints.soton.ac.uk/476281/1/fevo_11_1165174.pdf en English eng https://eprints.soton.ac.uk/476281/1/fevo_11_1165174.pdf Brombacher, Anieke, Wilson, Paul, Bailey, Ian and Ezard, Thomas (2023) Morphological variation across space does not predict phenotypic change through time in two Neogene planktonic foraminifera species. Frontiers in Ecology and Evolution, 11, [1165174]. (doi:10.3389/fevo.2023.1165174 <http://dx.doi.org/10.3389/fevo.2023.1165174>). cc_by_4 Article PeerReviewed 2023 ftsouthampton https://doi.org/10.3389/fevo.2023.1165174 2024-01-25T23:21:04Z Introduction: Lines of least resistance, or the direction of maximum phenotypic variation, are reliable predictive tools for directions of evolutionary divergence through time. However, the consistency of trait covariation patterns through space, i.e. in different populations of the same taxa inhabiting different environmental settings, remains poorly established. Methods: To test whether the predicted direction of evolutionary change is the same through time as it is across space, we compare within- and among-population trait covariation patterns across six Atlantic populations of two planktonic foraminifera species. Our study interval is 600,000 years long, spans the Neogene/Quaternary boundary and includes Earth’s most recent major natural shift in global climate state: the intensification of Northern Hemisphere Glaciation. Results: We show that, despite powerful global temporal changes in climate, there is a strong spatial signal in the evolutionary response. Population-specific trait covariation slopes vary among sites, climate phases and core/edge position within the species’ biogeographic range. Discussion: Our results imply that the direction of expected evolutionary change does not align across populations. This suggests that trait covariation patterns in the study species are driven by adaptation to local environmental settings rather than species-wide constraints. Single populations should therefore not be used to predict the response of other populations, even if they are faced with similar environmental conditions. We caution against using individual populations to project future response of other/global populations unless the underlying mechanism for trait covariation is shown to be universal. Article in Journal/Newspaper Planktonic foraminifera University of Southampton: e-Prints Soton Frontiers in Ecology and Evolution 11 |
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University of Southampton: e-Prints Soton |
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ftsouthampton |
language |
English |
description |
Introduction: Lines of least resistance, or the direction of maximum phenotypic variation, are reliable predictive tools for directions of evolutionary divergence through time. However, the consistency of trait covariation patterns through space, i.e. in different populations of the same taxa inhabiting different environmental settings, remains poorly established. Methods: To test whether the predicted direction of evolutionary change is the same through time as it is across space, we compare within- and among-population trait covariation patterns across six Atlantic populations of two planktonic foraminifera species. Our study interval is 600,000 years long, spans the Neogene/Quaternary boundary and includes Earth’s most recent major natural shift in global climate state: the intensification of Northern Hemisphere Glaciation. Results: We show that, despite powerful global temporal changes in climate, there is a strong spatial signal in the evolutionary response. Population-specific trait covariation slopes vary among sites, climate phases and core/edge position within the species’ biogeographic range. Discussion: Our results imply that the direction of expected evolutionary change does not align across populations. This suggests that trait covariation patterns in the study species are driven by adaptation to local environmental settings rather than species-wide constraints. Single populations should therefore not be used to predict the response of other populations, even if they are faced with similar environmental conditions. We caution against using individual populations to project future response of other/global populations unless the underlying mechanism for trait covariation is shown to be universal. |
format |
Article in Journal/Newspaper |
author |
Brombacher, Anieke Wilson, Paul Bailey, Ian Ezard, Thomas |
spellingShingle |
Brombacher, Anieke Wilson, Paul Bailey, Ian Ezard, Thomas Morphological variation across space does not predict phenotypic change through time in two Neogene planktonic foraminifera species |
author_facet |
Brombacher, Anieke Wilson, Paul Bailey, Ian Ezard, Thomas |
author_sort |
Brombacher, Anieke |
title |
Morphological variation across space does not predict phenotypic change through time in two Neogene planktonic foraminifera species |
title_short |
Morphological variation across space does not predict phenotypic change through time in two Neogene planktonic foraminifera species |
title_full |
Morphological variation across space does not predict phenotypic change through time in two Neogene planktonic foraminifera species |
title_fullStr |
Morphological variation across space does not predict phenotypic change through time in two Neogene planktonic foraminifera species |
title_full_unstemmed |
Morphological variation across space does not predict phenotypic change through time in two Neogene planktonic foraminifera species |
title_sort |
morphological variation across space does not predict phenotypic change through time in two neogene planktonic foraminifera species |
publishDate |
2023 |
url |
https://eprints.soton.ac.uk/476281/ https://eprints.soton.ac.uk/476281/1/fevo_11_1165174.pdf |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_relation |
https://eprints.soton.ac.uk/476281/1/fevo_11_1165174.pdf Brombacher, Anieke, Wilson, Paul, Bailey, Ian and Ezard, Thomas (2023) Morphological variation across space does not predict phenotypic change through time in two Neogene planktonic foraminifera species. Frontiers in Ecology and Evolution, 11, [1165174]. (doi:10.3389/fevo.2023.1165174 <http://dx.doi.org/10.3389/fevo.2023.1165174>). |
op_rights |
cc_by_4 |
op_doi |
https://doi.org/10.3389/fevo.2023.1165174 |
container_title |
Frontiers in Ecology and Evolution |
container_volume |
11 |
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1790606967938482176 |